Home / 109,657.70-164,267.85-76,415.30

Finding the Fourth Proportional to 109,657.70, 164,267.85 and 76,415.30

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Solution

The fourth proportional to 109,657.70, 164,267.85 and 76,415.30 is: 114,470.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,657.70 : 164,267.85 = 76,415.30 : x
  2. Step 2: Convert to fraction form
    109,657.70/164,267.85 = 76,415.30/x
  3. Step 3: Cross multiply
    109,657.70x = 164,267.85 × 76,415.30
  4. Step 4: Simplify right side
    109,657.70x = 12,552,577,038.11
  5. Step 5: Solve for x
    x = 12,552,577,038.11/109,657.70
  6. Step 6: Final answer
    x = 114,470.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.